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#!/usr/bin/env python
#############################################################################
##
## This file is part of Taurus
##
## http://taurus-scada.org
##
## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
## Taurus is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Taurus is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with Taurus. If not, see <http://www.gnu.org/licenses/>.
##
#############################################################################
"""
AttributeChooser.py: widget for choosing (a list of) attributes from a tango DB
"""
__all__ = ["TaurusAttributeChooser"]
__docformat__ = 'restructuredtext'
from taurus.external.qt import Qt
from taurus.qt.qtgui.base import TaurusBaseWidget
from taurus.core.util.containers import CaselessList
from taurus.qt.qtgui.util.ui import UILoadable
@UILoadable(with_ui='ui')
class TaurusAttributeChooser(Qt.QWidget, TaurusBaseWidget):
__pyqtSignals__ = ("modelChanged(const QString &)",) ##
def __init__(self, parent = None, designMode = False):
"""Initialize the MainWindow"""
##
self.call__init__wo_kw(Qt.QWidget, parent)
self.call__init__(TaurusBaseWidget, str(self.objectName()))
##
self.loadUi()
#Create global variables
self.dev_name = ""
self.selectedItems = CaselessList([])
self.selectedItemsComplete = CaselessList([])
#self.ui.attrList.setSortingEnabled(True)
self._singleAttrMode = False
#set icons
self.ui.addButton.setIcon(Qt.QIcon(":/actions/go-down.svg"))
self.ui.removeButton.setIcon(Qt.QIcon(":/actions/go-up.svg"))
self.ui.cancelButton.setIcon(Qt.QIcon(":/actions/edit-clear.svg"))
self.ui.updateButton.setIcon(Qt.QIcon(":/actions/view-refresh.svg"))
#Connect the ui.lineEdit
self.connect(self.ui.lineEdit, Qt.SIGNAL("returnPressed () "), self.setDevName)
self.connect(self.ui.lineEdit, Qt.SIGNAL("textChanged (const QString&)"), self.setDevName_new)
#Connect the addButton
self.connect(self.ui.addButton,Qt.SIGNAL( "clicked()"), self.addButtonClicked)
#Select an attribute with double click
self.connect(self.ui.attrList,Qt.SIGNAL( "itemDoubleClicked (QListWidgetItem *)"), self.addButtonClicked)
#Connect the button to cancel the selection
self.connect(self.ui.cancelButton,Qt.SIGNAL( "clicked()"), self.cancelButtonClicked)
#Connect the removeButton
self.connect(self.ui.removeButton,Qt.SIGNAL( "clicked()"), self.removeButtonClicked)
#Connect the updateButton
self.connect(self.ui.updateButton,Qt.SIGNAL( "clicked()"), self.updateButtonClicked)
self.setDevName_new()
def setSingleAttrMode(self, single):
'''sets whether the selection should be limited to just one attribute
(single=True) or not (single=False)'''
if single == self._singleAttrMode: return
self._singleAttrMode = single
if single:
self.ui.attrList.setSelectionMode(Qt.QAbstractItemView.SingleSelection)
else:
self.ui.attrList.setSelectionMode(Qt.QAbstractItemView.ExtendedSelection)
def isSingleAttrMode(self):
return self._singleAttrMode
def resetSingleAttrMode(self):
self.setSingleAttrMode(self, False)
def updateList(self, attrList ):
self.selectedItemsComplete=CaselessList(attrList)
self.ui.final_List.clear()
self.ui.final_List.addItems(self.selectedItemsComplete)
def getDb(self):
return self.getTaurusFactory().getDatabase()
def setDevName(self):
"""Fill the devices list"""
device= str(self.ui.lineEdit.text())
try:
items = list(self.getDb().get_device_exported(device))
except Exception,e:
self.warning('Unable to contact with device %s: %s'%(device,str(e)))
items=[]
self.ui.devList.clear()
self.ui.devList.addItems(items)
#self.connect(self.ui.devList, Qt.SIGNAL("itemClicked ( QListWidgetItem * )"), self.setAttributes)
self.connect(self.ui.devList, Qt.SIGNAL("itemSelectionChanged ()"), self.setAttributes)
def setDevName_new(self):
"""Fill the devices list"""
device= str(self.ui.lineEdit.text())
device += '*'
try:
items = list(self.getDb().get_device_exported(device))
except Exception,e:
self.warning('Unable to contact with device %s: %s'%(device,str(e)))
items=[]
self.ui.devList.clear()
self.ui.devList.addItems(items)
#self.connect(self.ui.devList, Qt.SIGNAL("itemClicked ( QListWidgetItem * )"), self.setAttributes)
self.connect(self.ui.devList, Qt.SIGNAL("itemSelectionChanged ()"), self.setAttributes)
def setAttributes(self):
"""Fill the attributes list"""
import PyTango
self.ui.attrList.clear()
self.dev_name = str(self.ui.devList.currentItem().text())
try:
items=[str(a.name) for a in PyTango.DeviceProxy(self.dev_name).attribute_list_query()]
except Exception,e:
self.warning('Unable to contact with device %s: %s'%(self.dev_name,str(e)))
items=[]
items.sort(key=lambda x:x.lower()) #sort the attributes (case insensitive!)
for i in range(len(items)):
self.ui.attrList.addItem(items[i])
def addButtonClicked(self):
"""Put all the items in the selectedItems list into the selectedItemsComplete list, with the device name"""
if self.isSingleAttrMode(): #if we are in single attr mode, we want to replace instead of adding attributes
self.selectedItemsComplete = CaselessList([])
self.ui.final_List.clear()
#print self.ui.attrList.selectedItems()
self.selectedItems = self.ui.attrList.selectedItems()
for i in range(len(self.selectedItems)):
aux = str(self.dev_name) + "/" + str(self.selectedItems[i].text())
if (aux not in self.selectedItemsComplete):
self.selectedItemsComplete.append(aux)
self.updateList(self.selectedItemsComplete)
def cancelButtonClicked(self):
"""Cancel all the selected items and clear all the lists"""
self.selectedItemsComplete = CaselessList([])
self.selectedItems = CaselessList([])
self.ui.attrList.clearSelection()
self.ui.final_List.clear()
def removeButtonClicked(self):
"""Remove selected items of the final list """
for item in self.ui.final_List.selectedItems():
self.selectedItemsComplete.remove(str(item.text()))
self.updateList(self.selectedItemsComplete)
def updateButtonClicked(self):
"""Return the final Attributes list """
self.emit(Qt.SIGNAL("UpdateAttrs"), self.selectedItemsComplete)
def main(args):
app=Qt.QApplication(args)
win=TaurusAttributeChooser()
win.show()
app.connect(app, Qt.SIGNAL("lastWindowClosed()"),app,Qt.SLOT("quit()"))
return app.exec_()
if __name__=="__main__":
import sys
sys.exit(main(sys.argv))
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